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CVE-2017-8383

CVE-2017-8383: Craft CMS Unauthorized View

5.3

CVSS Score
3.0

Basic Information

CVE ID
CVE-2017-8383
GHSA ID
GHSA-7qq6-fgpw-xw45
EPSS Score
0.54164%
CWE
CWE-284
Published
5/13/2022
Updated
10/31/2023
KEV Status
No
Technology
TechnologyPHP

Technical Details

CVSS Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Package NameEcosystemVulnerable VersionsFirst Patched Version
craftcms/cmscomposer< 2.6.29762.6.2976

Vulnerability Intelligence
Miggo AIMiggo AI

Miggo AIRoot Cause Analysis

The vulnerability stems from improper access control when serving files. Craft CMS's asset management system typically uses controller actions to handle file requests. The AssetsController::actionServeFile method would be responsible for serving files, and in vulnerable versions, it likely did not properly restrict the base directory path validation, allowing traversal into protected craft/app/ folders. This matches the CWE-284 pattern and the described vulnerability impact of exposing sensitive application files.

Vulnerable functions

Only Mi**o us*rs **n s** t*is s**tion

WAF Protection Rules

WAF Rule

*r**t *MS ***or* *.*.**** *o*s not prop*rly r*stri*t vi*win* t** *ont*nts o* *il*s in t** `*r**t/*pp/` *ol**r.

Reasoning

T** vuln*r**ility st*ms *rom improp*r ****ss *ontrol w**n s*rvin* *il*s. *r**t *MS's *ss*t m*n***m*nt syst*m typi**lly us*s *ontroll*r **tions to **n*l* *il* r*qu*sts. T** `*ss*ts*ontroll*r::**tionS*rv**il*` m*t*o* woul* ** r*sponsi*l* *or s*rvin* *i